Free baby Big Mac at McDonald's

Get a free Mac Jr. at McDonald's using a new feature in the restaurant's mobile app.

Download the free app and order through Mobile Order & Pay to get a free Big Mac Jr. when you buy one at participating restaurants.

The app also has weekly coupons that can be shown at the counter or drive-through window. Deals include a free e Filet-O-Fish sSandwich when you buy one, and a free hash brown with a breakfast sandwich purchase.